On the day that Lucas had disappeared from the Seven Sparks Forge store, just before the incident, the security team that had been tasked with monitoring his every move were calm and relaxed. This was understandable as the surveillance systems and measures used on Lucas were so tight and secure that they weren't worried. Even if the target was a fourth level Apertures Opening stage stellar practitioner, he might not be able to get away safely. Just the stellar refinement levels of the BCPC agents were at the second and third level. Meanwhile, the pieces of equipment were of high-grade and could even capture the movement of a fourth level stellar practitioner at their best. On the contrary, Lucas was a human.
From this level of setup, it was quite obvious that escaping was impossible, or so they thought. This was why, a few minutes later when nothing came up on the screens, they were stunned.